Hand-car



(No Model. 2 Sheets-Sheen 1.

v R. G. ROM'BAUER HAND GAR.

No. 366,882. Patented July 19., 1887.

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(No Model.) 2 Sheets-Sheet 2.

R G. ROMBAUER.

H/AND GAR.

No. 366,882 v Patented July 19, 1887.

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UNITE STATES PATENT OFrIcE.

RAPHAEL G. ROMBAUER, OF CARTHAGE, MISSOURI.

HAND-CAR.

SPECIFICATION forming part of Letters Patent No. 366,882, dated July 19,1887.

Application filed January 25,1887. Serial No. 225,450. (No model.)

To all whom, it may concern:

Be it known that LRAIHAEL G. Ronni-loan, of Carthage, Jasper county,Missouri, have made a new and usefulImprovement in Hand- Cars,ofwhichthe following is a full,clear, and exactdescription.

In the ordinary handear in which the power is applied by means of apitman and crank the difficulty incident to dead-centers is notablyexperienced. It is impracticable to initiate the movement of the carwhen the crank is at the dead-point, andthe car needs to be pushed untilsufficient momentum is acquired to carry the crank easily past thecenter before the operatives upon the car can keep it movingl Thedifficultyreferred to is obviated and the full power of those propellingthe car applied to great advantageby means of thepresent improvement,which, generally considered, consists substantially as follows: Theordinary lever,in its customary position and operated in the customarymanner, is by some suitable means, such as pawls attached to the leverand respectively at opposite sides of the bearingupon which thelever isoscillated, adapted to impart its motion to a pair of ratchets turningloosely upon the lever bearing. \Vhen one end of the lever movesupward,one of the ratchet-wheels is rotated, and when the other end ofthe lever moves upward the other of the ratchet-wheels is rotated, butin the opposite direction to that of the other ratchetwheel. The ratchetwheels respectively are attached to or made part of two sprocketwheelsloose upon the lever bearing, and which in consequence are rotated withthe ratchets. The motions of the sprocket-wheels, by means of chainbelts, are respectively communicated to two other sprocket -wheels fastupon the driving-shaft of the car, but so that said last-mentionedsprocket-wheels shall be driven in the same direction. The car istherefore driven by both the up and the down motion of the lever, andwhatever the position of the lever, and whether the car is in motion orat a standstill, the full amount ofpower applied to the lever isutilized. By reversing the pawls the motions of the ratchet-wheels andsprocket-wheels upon the lever-bearing are reversed and the hand-carmoved in the opposite direction.

I 3301-" Fig. 2.

H In the annexed drawings, making part of this specification, Figure lis a side elevation of a hand-car in which the improvement is embodied..Fig. 2 is a plan thereof. Fig. 3 is a vertical longitudinal section onthe line Fig. 4 is a detail, being a plan, showing the sprocket-wheelsupon the driving-shaft and the parts more immediately therewithconnected; and Fig. 5 is a vertical longitudinal section on the line 5 5of Fig. 4.

The samelettcrs of reference denote the same parts.

The hand-car A, saving as it is modified by the improvement underconsideration, is of the usual construction.

B represents the lever used by those operating the car. The bearing 0,upon which the lever is oscillated, is supported by the uprights D D,which in turn are supported from the car platform or frame E.

F F represent the pawls with which, and

respectively at opposite sides of the bearing 0, the lever B isprovided.

G G represent the sprocket-wheels, which are loose on the bearing 0. Asshown in the drawings, they also serve as the ratchetwheels,with whichthe pawls F F respectively coact.

II represents the chain belt which transmits the motion of thesprocket-wheel G upon the bearing 0 to the sprocket wheel I upon thedriving shaft or axle J of the car, and L represents the chain beltwhich transmits the motion of the other sprocket-wheel,G,upon thebearing 0 to the other sprocket-whcel,1, upon the driving shaft or axleJ. To enable the sprocket-wheels I I to be driven in the same direction,the chain belt L is carried around the idler-pulleys M N upon thebearings in a, respectively.

In operation, when the end I) of the lever B is depressed,thc pawl Fupon the opposite end, I), of the lever engages in the wheel G, and thepawl F upon the end I) of the lever is disengagcd from the wheel G, andwhen the lever end I) is depressed the pawl F engages in the wheel G,and the pawl F is disengaged from the wheel G. This results in drivingthe various movable parts of the car, and the car itself, in thedirection indicated by the arrows in full lines, Fig. 3. WVhen it isdesired to reverscdthat is, turned around so as to cause thebeveledtooth f to point. downward in the place of pointing upward, asshown in Fig. 3, and then released to'bear again against theirrespective wheels G G. The pawl F now engages with the wheel G when thelever end b is depressed, and the pawl F with the wheel G when the leverend b is depressed, and the motion of the parts and of the car is now asindicated by the arrows in broken lines,Fig. 3.

While it is desirable, it is not essential for the oscillating lever andthe ratchet and sprocket wheels tohave the samebearing. Said wheels mayhavetheir own bearing, and it may be located in anysuitable positionwith reference to the lever-bearing, and wherever arranged thelever-pawls should be suitably constructed to operate in conjunctionwith their ratchets.

I claim v 1. In a hand-car, the combination of the oscillating lever,the pawls, the lever-bearing, the ratchet and sprocket wheels loose uponsaid lever-bearing, the chain belts, the driving-shaft of the car, thesprocket-wheels fast upon said shaft, and the'idler-pulleys, substantially as described.

2. In a hand-car,the combination of the lever-bearing, thesprocket-wheels loose and rotating in oppositedirections upon saidbearing, the chain belts, the car-driving shaft, the sprocket-wheelsfast upon said shaft, and the idler-pulleys, substantially as described.

3. In a hand-car, the combination of the driving-shaft, the twoidler-pulleys and their respective bearings, and the sprocketwheelbetween said idler-pulleys and fast upon said driving-shaft,substantially as described,and for the purpose of driving saidsprocket-wheel in the same direction with that of the othersprocket-wheel upon said driving-shaft.

' 4.- In a hand-car, the combination of the oscillating lever, the'reversable pawls, the ratchet and sprocket wheels and their bearin g,and the chains, substantially as described. RAPHAEL G. ROMBAUER.

Witnesses: j

0. D. MOODY,

Ron'r. J. ROMBAUER.

